Answer:
The null hypothesis is rejected.
Step-by-step explanation:
Assuming the proportions in each of the categories is the same which is 1/5 = 0.20.
H0: p1 = p2 = p3 = p4 = p5 = 0.2
Ha: H0 is not true.
The table is as below:
Twitter Type: Observed Count p E=350*p (O-E)^2/E
IS 50 0.2 70 5.7143
OC 61 0.2 70 1.1571
RT 64 0.2 70 0.5143
ME 102 0.2 70 14.6285
O 73 0.2 70 0.1286
-----------------------------------------------------------------------------------------------
Total 22.1428
The test statistic [tex]\chi^2[/tex] is 22.1421
The degree of freedom d is n-1=5-1 =4
The corresponding p-value from the chi-squared table is .000188.
As this value is less than the p-value for the H0 thus we reject the null hypothesis.
y varies directly as x and inversely as the square root of w; write the sentence as an equation:
Product of ²/₇ with the reciprocal of ⁽⁻³⁾/₈ is
Answer:
Step-by-step explanation:
Reciprocal of (-3)/8 = -8/3
[tex]\frac{2}{7}*\frac{-8}{3}=\frac{2*(-8)}{7*3}=\frac{-16}{21}[/tex]
Due today...
Explain how to use the area of a parallelogram to find the area of a triangle
!NO LINKS, NO FILES!
please :)
Answer:
If you draw a diagonal across the parallelogram from one vertex to the opposite vertex, you divide the parallelogram into two congruent triangles. Each triangle thus has 1/2 of the area of the parallelogram.
Anyone know the answer to this question?
Answer the following questions for each geometric
series.
Infinite sum
S=a1/1-r,(for lrl <1)
10 + 1 + 0.1 +0.01 +...
Answer:
10
0.1
100/9,11.111
1500
The sum of this series=11.11
Step-by-step explanation:Definition of geometric seriesA geometric series is the sum of an infinite number of terms with a constant ratio between them in mathematics.
Formula of infinite geometric sum
[tex]S=a1/1-r,(for lrl < 1)[/tex]
and given series
[tex]10 + 1 + 0.1 +0.01 +...[/tex]...
where
a=10 and r=0.1
by putting these values in above formula
[tex]S=10/(1-0.1)\\=11.11[/tex]
Hence the sum of given series= 11.11
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A number pattern has the rule divide by 3 the fifth term of the pattern is 2 what is the second term of the pattern.
Write down and simplify expression of the perimeter of the shape below.
Simplified Please !
Answer:
[tex]P = 4x+4[/tex]
Step-by-step explanation:
Given
The attached triangle
Required
Determine the perimeter (P)
This is calculated by adding the measure of the three sides.
So, we have:
[tex]P = 2x-3 + x + 5 +x + 2[/tex]
Collect like terms
[tex]P = 2x +x +x-3 + 5 + 2[/tex]
[tex]P = 4x+4[/tex]
Factorize
[tex]P = 4(x+1)[/tex]
Hence, the perimeter is 4x + 4 or 4(x + 1)
Mr. Jackson earns $1,500 each week and his wife earns $850 a week. Each week they need to set aside $200 for food, $75 for gas, $625 for the mortgage, and $350 for savings. How much money will they have left each week?
Answer:
$1,100
Step-by-step explanation:
Given that
Earnings of Mr Jackson is $1,500
Earnings of his wife is $850
They need to set aside the following amounts
For foods, it would be $200
For gas, it would be $75
For Mortgage it would be $625
ANd, for savings, it would be $350
We need to find out the amount of money that they have left each week
So, the amount would be
= $1,500 + $850 - $200 - $75 - $625 - $350
= $1,100
Answer:
Step-by-step explanation:
The Hudson family is saving for a
family vacation to Disney World.
They determine that the trip will
cost $3,200. Mr. and Mrs.
Hudson have already set aside
$1,500 for the trip. If they leave
in 16 weeks, then how much
will they need to save
each week?
b/4+ 2= -1
help me with this find b
Answer:
-12
Step-by-step explanation:
look at pic 10 pts will mark brainilest
Answer:
The answer is B or 8
Step-by-step explanation:
Answer:
B. $8
Step-by-step explanation:
Find the slope of the graph 40/5 = 8
Which expression is equivalent to 4/9×7?
The stock of Company A lost $1.90 throughout the day and ended at a value
of $36.10. By what percentage did the stock decline?
Answer:
5%
Step-by-step explanation:
36.10 + 1.90 = 38
1.9 / 38 = 0.05
0.05 x 100 = 5
please help (no links) or i will report you i just need answers
Answer:
15.) 104 ... I hope angles are not drawn to scale
16.) 144
17.) 37
Step-by-step explanation:
15.)
3x + 10 = 4x -12
22 = x
so 3x +10 = 76
180 - 76 = t = 104
16.)
2(21) + 36 + 90 + bcd + a = 360
a = 90 - 21 = 69
360 - (2(21) + 36 + 90 + 69) = bcd
bcd = 360 - 237 = 123
angle acd = 21 + bcd = 21 + 123 = 144
17.)
(5x - 7) + 90 + (3x + 1) = 180
8x -6 = 90
8x = 96
x = 12
so 5x - 7 = 53
90 - 53 = angle lmn = 37
A truck has a trailer that has a length of 20 feet, a width of 8 feet, and a height of 12 feet. What is the volume of the trailer?
Answer:
1920
Step-by-step explanation:
20*8*12=1920
9. Please help besties
Or user elpink25
Answer:
1
Step-by-step explanation:
The method I used is elimination.
x - 2y = 1
-x - 4y = -7 To find y, we need to cancel the x by using it's opposite. This also affects the other numbers in the equation. This makes positive 4 into a negative and positive 7 into a negative.
Now we are left with, -2y = 1
-4y = -7
Add and you get, -6y = -6
Divide -6y/-6 = -6/-6
Our answer is, y = 1.
A welcome mat in front of the hardware store is a half-circle. The straight side of the mat is 24 inches. What is the perimeter of the mat? Round to the nearest inch.
No links.
Answer:
To find the perimeter, we want to find the circumference of the whole circle, divide by 2, and add the 24 inches to get the total perimeter.
A semicircle is half a circle. If the straight edge of the semi circle is 24 inches, that makes the diameter of the full circle 24 inches as well.
To find the circumference of the full circle, we need the formula:
C = 2πr
Circumference = 2 x pi x radius
Radius is half of the diameter, so 12 inches.
C = 2 x pi x 12
C = 75.36 inches
75.36 is the circumference of a circle with a diameter of 24 inches. Divide this by two to get 37.68 inches, which is the length of the round part of the mat. Adding 24 inches for the straight side gives you the final answer, 61.68 inches, or ABOUT 62 inches.
4/10 divided 1/3 = 6/5. 2/15. 5/6. 11/5
(c) If tanA =1/2 find the value of tan3A
Answer:
5.5
Step-by-step explanation:
tana=3a=3tana-tana^3a/1-3 tana^2a
=3(1/2)-(1/2)^3/1-3(1/2)^2
=3/2-1/8 /1-3/4
=(12-1/8)/1/4)
=(11/8)/(1/4)
=11/8×4
11/2====5.5
i think it help you do by this way if the answer is not this
Multiplying and simplify radicals!!
If u get it right I’ll give brainliest! (show work please)
Answer:
sorry, i couldn't show my work down below is a picture of the the answer tho Gomen
Step-by-step explanation:
Answer:
-30
Step-by-step explanation:
-3[tex]\sqrt{10}[/tex]*[tex]\sqrt{10}[/tex]=-3[tex]\sqrt{10}^2[/tex]=-3*10=-30
what is the effect on the graph of fx =1/x when it is transformed to g(x)=1/x - 7
a. the graph of f(x) is shifted 7 units to the left
b. the graph of f(x) is shifted 7 units down
c. the graph of f(x) is shifted 7 units up
d. the graph of f(x) is shifted 7 units to the right
PLEASE HELP
Answer:
b. the graph of f(x) is shifted 7 units down7 is a negative term here hence,it will go downThe effect on the graph of f(x) =1/x when it is transformed to g(x)=1/x - 7 is
the graph of f(x) is shifted 7 units down.
The correct option is (B).
what is graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
Given:
g(x)=1/x - 7 and f(x)= 1/x
As, the transformation takes place so there is a negative seven.
Hence, the graph of f(x) is shifted 7 units down.
Learn more about graph here:
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Find h.
10 cm
h = ✓ [?] cm
8 cm
Answer:
√86 cm
Step-by-step explanation:
radius² + h² = slope² slope = 10 radius = 4
h² = slope² - radius²
h = √(slope² - radius²)
= √(10² - 4²)
= √ 86
=
Answer: 84
...........
Hi cool yeah here is the equation
Answer:
c 7 + 7x
Step-by-step explanation:
A bone that originally contained
150 mg of carbon-14 now contains
100 mg of the isotope. If the half-life
of carbon-14 is 5730 years, how old is
the bone?
Answer:
30 years
Step-by-step explanation:
XYZ Inc. has a cost of common stock of 14%, a cost of preferred stock of 10%
percent, an after-tax cost of debt of 4%, and a tax rate of 21%. Given this, which one of the following will reduce the firm's WACC, given that its PE ratio is equal to 24?
A. Decreasing XYZ's beta
B. Repurchasing shares of common stock
C. Increasing the debt-equity ratio
PLEASE HELP WITH ALGEBRA
Answer:
log 7
Step-by-step explanation:
[tex]log (a)+log6=log(ab)\\\\[/tex]
[tex]log(c)-log(d)=log(c/d)[/tex]
---------------------------------
hope it helps...
have a great day!!
10. Based on the diagram below, which statement is true?
Answer:
Part D is correct
Step-by-step explanation:
A line is an undefined term because it
Answer:
A line is an undefined term because it describes something that does not have width or depth. However, lines can extend its length in both side infinitely. It contains arrowheads indicating it can extend.
Step-by-step explanation:
I hope it will help you
What is the area of this parallelogram? Show your work in detail.
helppp MEEEEE
Answer:
Parallelogram area = (height × base)
Parallelogram area = 3 * 10 cm
Area = 30 square centimeters
Source: http://www.1728.org/quadpar.htm
Step-by-step explanation:
PLS HELP!!!!! Which expression shows the product of two factors?
2 − 6
2 + 6
2( + 6)
(2 + ) + (6 + )
Answer:
2+6
Step-by-step explanation:
Answer:
2+6
Step-by-step explanation:
its 2 +6 Hope this helps.
What is the area of this triangle?
h = 5 in.
b =10 in.
Answer:
25 in²
Step-by-step explanation:
A = [tex]\frac{1}{2}[/tex]hb = [tex]\frac{1}{2}[/tex] × 5 × 10 = 25 in²
Answer:
25 units²
Step-by-step explanation:
Formula for calculating the area of a triangle:
A = hb/2
A = 5(10)/2
A = 50/2
A = 25